well yes... but it is easy enough to have info printed on the centre (like the name of what it is) and then the rest of the info and art designs on the case. (i mean how many people buy a dvd because the disc itself looks cool?)
from a conveinience side of things, the double sided disc would be better for the consumer (were a dual sided dvd reader available) but since when did the consumers needs matter eh
There have been quite a few double-sided DVDs in the early days of DVD. The widescreen version of the movie would be on one side and the pan&scan version on the other.
A double-sided drive would be double the thickness, double the cost, and half the reliability. Roughly.
Thickness isn't really a problem; laptop drives are very thin. Reliability halving? Nah, don't think so. You'd only need one spindle motor and one actuator servo even for a doublesided drive, that leaves a second laser/photodetector and focus mechanism, former of which is completely solid-state and hence extremely long-lived, and the latter is unlikely to be the moving part that breaks first.
Doublesided drives will never happen though simply because that they're both more expensive and redundant. There are no doublesided DVDs made these days, and even if they were they'd just have people turn the disc over by hand anyway.
Double sided discs are awful. They get damaged far more easily than single sided discs. I would rather stand up, walk over to my machine, and change the disc over the high risk of ruining the disk for good. Especially with a AU$100 game.
all two sided dvds I have are for movies with widescreen and normal tv pan and scan versions.
this is the only time I have ever seen two sided dvds, and two sided reading in this application would be totally useless, not to mention double the cost.